US3124769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High elongation strain gage
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:14
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2287
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A STRAIN GAGE COMPRISING, IN COMBINATION, AN ELONGATED CARRIER MEMBRANE OF ELECTRICAL INSULATING MATERIAL HAVING TOP AND BOTTOM SIDES AND TWO EDGES, AND ELECTRICAL STRAIN SENSITIVE FILAMENT BONDED TO ONE OF SAID SIDES OF THE MEMBRANE SO AS TO BE SUPPORTED THEREBY AND EXTENDING IN THE DIRECTION OF THE ELONGATED AXIS THEREOF, THE MEMBRANE AND FILAMENT BEING HELICALLY CURVED ABOUT AN AXIS SO THAT SAID GAGES OF THE SUCCESSIVE HELICAL COILS ARE FREELY SPACED APART ALONG SAID AXIS WHEREBY THE GAGE MAY HAVE A RELATIVELY LARGE ELONGATION ALONG SAID AXIS OF THE HELIX FOR A GIVEN CHANGE IN ELECTRICAL RESISTANCE OF THE GAGE FILAMENT.
Claim 2
Dependent Claim
104 words
A STRAIN GAGE COMPRISING, IN COMBINATION, AN ELONGATED CARRIER MEMBRANE OF ELECTRICAL INSULATING MATERIAL HAVING TOP AND BOTTOM SIDES AND TWO EDGES, AND ELECTRICAL STRAIN SENSITIVE FILAMENT BONDED TO ONE OF SAID SIDES OF THE MEMBRANE SO AS TO BE SUPPORTED THEREBY AND EXTENDING IN THE DIRECTION OF THE ELONGATED AXIS THEREOF, THE MEMBRANE AND FILAMENT BEING HELICALLY CURVED ABOUT AN AXIS SO THAT SAID GAGES OF THE SUCCESSIVE HELICAL COILS ARE FREELY SPACED APART ALONG SAID AXIS WHEREBY THE GAGE MAY HAVE A RELATIVELY LARGE ELONGATION ALONG SAID AXIS OF THE HELIX FOR A GIVEN CHANGE IN ELECTRICAL RESISTANCE OF THE GAGE FILAMENT.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |